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2022 | Book

EAM in a Nutshell Read chapter Read first chapter

Fundamentals of Enterprise Architecture Management

Foundations for Steering the Enterprise-Wide Digital System

Author: Dr. Jörg Ziemann

Publisher: Springer International Publishing

Book Series : The Enterprise Engineering Series

Part of: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik" , Springer Professional "Wirtschaft"

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About this book

This textbook provides a comprehensive, holistic, scientifically precise, and practically relevant description of Enterprise Architecture Management (EAM). Based on state-of-the-art concepts, it also addresses current trends like disruptive digitization or agile methods.

The book is structured in five chapters. The first chapter offers a comprehensive overview of EAM. It addresses questions like: what does EAM mean, what is the history of EAM, why do enterprises need EAM, what are its goals, and how is it related to digitalization? It also includes a short overview of essential EAM standards and literature. The second chapter provides an overview of Enterprise Architecture (EA). It starts with clarifying basic terminology and the difference between EA and EAM. It also gives a short summary of existing EA frameworks and methods for structuring the digital ecosystem into layers and views. The third chapter addresses the strategic and tactical context of the EAM capability in an enterprise. It defines essential terms and parameters in the context of enterprise strategy and tactics as well as the operative, organizational context of EAM. The fourth chapter specifies the detailed goals, processes, functions, artifacts, roles and tools of EAM, building the basis for an EAM process framework that provides a comprehensive overview of EAM processes and functions. Closing the circle, the last chapter describes how to evaluate EAM in an enterprise. It starts by laying out core terminology, like “metric” and “strategic performance measurement system” and ends with a framework that integrates the various measuring areas in the context of EA and EAM.

This textbook focuses on two groups: First, EAM scholars, ie bachelor or master students of Business Information Systems, Business Administration or Computer Science. And second, EAM practitioners working in the field of IT strategy or EA who need a reliable, scientifically solid, and practically proven state-of-the-art description of essential EAM methods.

Table of Contents

Frontmatter
Chapter 1. EAM in a Nutshell
Abstract
This chapter provides a comprehensive overview of Enterprise Architecture Management. It addresses questions like: What does EAM mean, what is the history of EAM, why do enterprises need EAM, what are its goals, and how is it related to digitalization? Further topics include the consequences of a laissez-faire approach in a complex enterprise-wide digital ecosystem, which is not steered but emerges “organically.” We also address the related question: if there is a middle ground between unmanaged chaos and exuberant, all-controlling central steering and planning of the digital ecosystem landscape. The chapter concludes with a short overview of essential EAM standards and literature.
Jörg Ziemann
Chapter 2. Enterprise Architecture in a Nutshell
Abstract
The previous chapter provided an overview of EAM, including its objective, to establish and maintain a “good” Enterprise Architecture. Delving deeper into the latter concept, this chapter provides an overview of Enterprise Architecture. We start with clarifying basic terminology, like “system,” “architecture,” and the difference between Enterprise Architecture (EA) and Enterprise Architecture Management (EAM). We also revisit the concept of system complexity and how it relates to parameters like standardization of the IT landscape. Afterward, we provide a short summary of existing EA frameworks and methods for structuring the digital ecosystem into layers and views. Next, basic principles for structuring socio-technical systems are laid out, like the forming of hierarchies and aligning the structures of organizational and digital systems. Finally, we describe core parameters of the Enterprise Architecture. These include, for example, the degree of standardization, centralization, and integration of the ecosystem, but also the desired degree of innovativeness, risk appetite, outsourcing, and cost and quality priorities.
Jörg Ziemann
Chapter 3. Strategic and Tactical Context of EAM
Abstract
This chapter addresses the strategic and tactical context of the EAM capability in an enterprise. To provide a basis for the following sections, first essential terms in the context of enterprise strategy and tactics are defined. Afterward, core parameters of the business strategy and the business operations of an enterprise are sketched out. These include classic strategy parameters, like cost focus, quality focus, or the market coverage of an enterprise. More operational parameters include the degree of business process integration, process standardization, and innovation within an enterprise. When these overarching enterprise parameters are clarified, we describe the parameters of the EAM capability itself. These include, for example, the scope of the EAM capability, its allocation, its stance toward standardization, and its planning horizon. In the following synthesis, we correlate the parameters for the enterprise strategy, the operative enterprise, and the EAM capability. The last section describes the operative context of EAM, i.e., the structure and the capabilities of the IT organization. Here, we first discuss the general shape of the IT organization (e.g., centralized vs. decentralized) and fundamental tasks of the IT organization (e.g., managing IT applications and infrastructure). Finally, we describe the individual capabilities of the IT organization that are most relevant for EAM.
Jörg Ziemann
Chapter 4. EAM Implementation
Abstract
In the previous chapter, we clarified the contextual parameters of Enterprise Architecture Management. Addressing the core of EAM implementation, this chapter now describes in detail EAM goals, processes, functions, artifacts, roles, and tools. Thus, after revisiting EAM goals, an EAM process framework is described that provides a comprehensive overview of EAM processes and functions. On the one hand, the framework comprises the EAM cube with core EAM processes. On the other hand, it encompasses supporting processes for enabling and steering the EAM capability. Each process type and its practical implementation are described in detail. Next, EAM artifacts are addressed. After a two-dimensional classification of artifacts, we describe how to create coherent collections of principles. Further artifacts described include, for example, maps of the digital ecosystem, target architectures, and roadmaps. In a similar vein, the tools as well as the EAM organization and roles required to fulfill the EAM processes and capabilities are described in depth.
Jörg Ziemann
Chapter 5. EAM Evaluation
Abstract
The previous chapters covered the definition, design, and implementation of Enterprise Architecture Management. Now we close the circle by describing how to evaluate EAM in a specific enterprise. The chapter starts by laying out core terminology, like “metric” and “strategic performance measurement system.” Afterward, we describe and relate core measuring areas in the context of EA and EAM. Following these areas, the chapter comprises three major sections: (1) evaluating individual digital systems, (2) evaluating the enterprise-wide digital ecosystem, and (3) evaluating the Enterprise Architecture Management capability. For each area, we describe existing measurement systems, like EAM maturity models. Subsequently, we condense and extend the state of the art into a coherent set of metrics. Each set is also illustrated in the form of a comprehensive EAM cockpit.
Jörg Ziemann
Backmatter
Metadata
Title
Fundamentals of Enterprise Architecture Management
Author
Dr. Jörg Ziemann
Copyright Year
2022
Electronic ISBN
978-3-030-96734-5
Print ISBN
978-3-030-96733-8
DOI
https://doi.org/10.1007/978-3-030-96734-5

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